Stamping machine with perfecting feature



March 18, 1952 s. E. ANDERSON 2,539,761

STAMPING MACHINE WITH PERFECTING\FEATURE Filed Jan. 28, 1948 2 SHEETS--SHEET l FIG. 4 FIG. 5

99 98 5 IOO INVENTOR;

STANLEY E. ANDERSON ATTORNEY March 18, 1952 s. E. ANDERSON 2,589,761

STAMPING MACHINE WITH PERFECTINGFEATURE Filed Jan. 28, 1948 2 SHEETS-SHEET 2 INVENTOR:

STANLEY E. ANDERSON BYW VLIMGM7 ATTORNEY Patented Mar. 18, 1952 2,589,761 ()F F I CE ST MP NG MACHINE WITH PERFEGTING FEATURE Stanley Anderson, Chicago, Ill. Application January 28, 1948, Serial No. 4,910

2.01aims. 1

This invention relates to stamping machines. Its principal object is to provide :a stamping machine capable of ink-stamping marks-as of ownership, on towels, sheets, and the like with indelibility sufiicient to withstand such laundering as the article is likely to undergo during its normal useful life.

A specific object is to provide a stamping ma chine which applies ink entirely through the material to enhance the indelibility of the mark ing. To this end, the invention contemplates a dual stamping machine operable to apply an obverse and a reverse stamp (mirror images of each other) to the opposite sides of the mate rial, the stamps being sufficiently inked that the ink bleeds entirely through to provide a unitary marking.

It is contemplated that the improved stamping machine will be used 'by hotel or Pullman-car operators to apply their chosen marks to their linens (towels, sheets, etc) To this end, an object of the invention is to provide a lightweight machine of the foregoing character adapted to be mounted on a work table or bench.

Qther objects and features, mostly subordinate to the foregoing, will appear as the description progresses.

The accompanying drawings, comprising Figs. 1 to 8, show suflicient views of two embodiments of a stamping machine constructed according to the principles of the invention. Figs. 1 to 6 relate to the first embodiment-w-Figs. '7 and .8 relate to the second.

Figs. 1 to 3 are respectively a top view, a rightside view, and a front view of the first embodiment. Normal position is shown in Figs. .1 and 3; operated position in Fig. 2.

Figs. 4 and5 are face views :of upper and lower (obverse and reverse) stamps respectively.

Fig. 6 is an enlarged view of .a portion .of Fig. 2 with parts broken-away to show how the ca' ble is attached to the pulleys.

Fig. 7 shows a right-side view .of the second embodiment in operated position.

Fig. 8 is an enlarged view of a portion of Fig. 7, with parts broken away to show how the cables attach to pulleys of the second embodiment.

Referring first to Figs. 1 to 13, the illustrated dual stamping machine is shown to be mounted on a wooden base plate I, secured to bench '5by screws 55. Bench 5 is supported by legs 6, resting on floor 1.

As shown in Fig. 2, the .dualstamping machine includes two similar machines .2 and 3 .mou-nted face-to-face. Each of the machines 2 and 3 may be constructed substantially as disclosed in detail in my patent for Stamping Machines, ,No. 2,434,381, issued January 13, 1948..

Machines 2 and 3 are secured together by the upper tab portions of supporting arms '4, as by riveting or welding. The lower portion of supporting arms 4 maybe secured tobase plate 1 by wood screws as shown. 4

Keeping in mind that individual machines 2 and 3 are of similar construction, machine 2 will now be described. Main body portion 22, with its upstanding opposed side portions 23 and .24 may. be constructed of sheet steel.

Stamp carriage .8 normally lies between the sides '23 and 24 of the main body portion, to which it is connected by three equal-length pairs cf pivoted guide arms, front pair ll, 12; intermediate pair l3, l4; and rear pair l5, 15. As described in detail in my previously identified prior application, the three pair of arms guide stamp carriage 8 for an arcuate stamping movement upwardly and forwardly from its normal position shown in Fig. 1, and then forwardly and downwardly to the position shown in Fig. 2. A reverse arcuate movement brings the carriage '8 back :to its normal, stamp-inking position (Fig.

As shown best in Fig. 2, the front end of the flat main portion of stamp carriage 8 is formed to serve as a retaining bracket for stamp 49. As disclosed in my previously mentioned application, the stamp 49 may be readily attached or removed by tightening or loosening wingnut 56.

Besides its main body portion, which may be made of wood, stamp 49 has a yielding face por tion 50, usually made of rubber. On the face portion 50, any desired type characters or other insignia (for example, as shown in Fig. 4 for the upper machine 2, and in Fig. 5 for the lower machine 3) are provided according to the desired marking "to be stamped.

In the normal (stampdnking) position of the stamp carriage 8, as shown in Figs. 1 and '3, the type characters on the under face of stamp 50 are {in contact with the ink applying face of ink pad 48, which maybe of the construction ordinarily supplied for inking hand stamps.

Movement of the stamp carriage 8 of machine 2, in an arcuate path, from its normal stampinking position of Figs. 1 and 3 to its stamping position of Fig. 2, is accomplished by the rotation of pulleys 3| and 32 and the movement of thesimila r stamp carriage of machine 3 is accomplished at the same time by the simultaneous rotation of pulleys 33 and 34 of machine 3.

These pulleys are -const-ructed as disclosed in my previously identified application; that is, each is of hollow construction and contains a spiral spring (not shown) which serves to hold the concerned stamp carriages in their stamp-inking position shown in Figs. 1 and 3.

'Counterclockwise rotation (as seen in Fig. '2) of pulleys 31 and 13.2 :to bring the stamp carriage of machine '2 forward to its stamping position shown in Fig. 2, and the accompanying clockwise rptation of pulleys 33 a-nd3 l of machine 3 to bring its stamp carriage to the illustrated stamping position is accomplished by cables 3t and 36. Cables 35 and 38 are attached to the pulleys 3| to 34 as shown in Figs. 2zand =3, and more clearly in an enlarged *view, Fig. 6. As

shown in Fig. 6, cable 35 passes upwardly in back of pulley 33; extends forwardly around pulley 33 passing through openings 4| and upwardly in front of pulley 3| and half around th pulley; and passes into the interior thereof through the opening 4|]; and is secured in place by being knotted at 41. a

Cables 35 and 33 extend downwardly, as seen in Figs. 2 and 3, and are interconnected with pedal I60, which is hinged at to floor piece- |62. The lower ends of cables 35 and 36 are secured to the outer ends of. equalizing bar 95, Figs.

2and3.

The upper end of rod 96 is looped through the central opening in bar 95 and the lower end of this rod is adjustablyconnected by turnbuckle 91 with the upper end of pedal rod 98; the'lower end of rod 98 is looped through the eye portion of rod99, secured to the free end of pedal "It. In practice, the rod 98 is furnished straight, and the user is expected to bend the lower end thereof at. about the proper point, depending upon the height of the work bench on which the machine is installed. After that, the necessary adjustment may be made by turnbuckle 91.

When the pedal is depressed, equalizing bar 95 is drawn downwardly, drawing cables 35 and 36 downwardly. This causes the clockwise rotation (as shown in Fig. 2) of pulleys 33 and 3d of machine 3 and the counterclockwise rotation of the pulleys 3| and 32 of machine 2 with the resulting arcuate movement of the stamp carriages to their operated position as shown in Fig. 2. H

When pedal mfi isreleased, the springs (not shown) in pulleys 3| to 34 return the respective stamp carriages simultaneously in respective arcuate paths, to normal position, through release of cables 35 and 36.

As shown in Figs. 1 to 3, a supporting U-bracket is secured to the forward arms 4 by screws 52. The top surface of member 5| serves as a table for the material F which is to be stamped simultaneously on both sides. As shown in Fig. 1, the

material, or fabric, F is held manually in position by the operator as he actuates and releases the pedal I00.

The base plate I is provided with suitable apertures to receive tubes 62 which are threaded into part 6| (a pipe flange will suffice), which may be secured to the top of plate I by wood screws as indicated in Fig. 2. The inside diameter of tubes 62 is such as to firmly receive tubes 63. The operating cables 35 and 36 pass longitudinally through'tubes 6B and 62.

Fig. '7 shows a modified embodiment of the invention. As shown in Fig. 7, the machine 2 is mounted slightlyforward of machine 3 and secured to arms 4 in a manner as previously described. As shOwn in Fig. 8, cable 15 passes upwardly in front of pulley 13; extends rearwardly around pulley 1|; is attached to pulley 1| as described for the main embodiment; passes downwardly in front of pulley 13 and half around it; passes into the interior thereof through a suitable opening; and is secured in place, as by being knotted. This arrangement eliminates any tendency toward cable wear which may be present in the main embodiment, at the lower pulleys.

The ink pad 69 (Fig. '7) may be of double-face construction, whereby the pad is placed in a As previously noted, stamp-49 may be made of wood, and face portion 50 may be made offrub ber. The face portion 50 is generally attached to stamp 49 by glue or cement. Before the face portions 50 are secured finally in place on their wood back portions, the machine is operated to stamping position as shown in Figs. 2 and '7, and the two opposing face portions are carefully aligned.

I claim:

1. In combination, a pair of similar stamping machines and means supporting them in superimposed facing relationship, each machine including a stamping. member biased to return to a normal position within the machine from a stamping position lying forwardly beyond the machine, the stamping positions of the two machines being in registry in substantially the same horizontal plane and being disposed onthe forward side of a vertical plane behind which both machines and the said supporting means are disposed, thus leaving the region free in the vicinity of the registering stamping positions to facilitate the placement of flat articles into position to be stamped on both sides at the same time, guide means fixed with the machines and said support means, said guide means comprising a pair of horizontal side guide members extending forwardly along the median line of the machines, through said vertical plane, and along respective opposite sides of the said horizontal plane of registry, to thereby define a centrally open guide surface for supporting and locating any said flat article in substantially the common plane of said stamping positions, and means controlled at the will of the operator of said machines for imparting an impulse to both machines at the same time effective to move the stamping members of both machines forwardly through said vertical plane and toward each other to reach the common plane of the stamping positions at substantially the same time, thereby stamping at the same time on both sides of a flat article positioned on said horizontal guide surface, the last said means including actuating means interconnecting the upper and lower stamping members for simultaneous movement to stamping position.

2 In a combination as set forth in claim 1, said guide means having a generally U-shaped outline in that it includes a horizontal front guide member which is located on the front side of said horizontal plane of registry and'which is formed in one piece with said side guide members and has its upper face lying in the same horizontal plane with the upper face of each of the side guide members. 1 i

STANLEY E. ANnnRso REFERENCES CITED The following references are oflrecord in the file of this patent: I

UNITED STATES PATENTS 

